That's what I thought, but couldn't figure how it worked with all the right angles. Necessity is the mother of invention. Reminds me of the first ice shanty I built a bunch of years ago, with foundation made of left over wood pallet 4 x 4 posts. Thing weighed a ton, but was solid as a rock. Later, and lots of moving it over snow drifts...I decided "light...is good" when it comes to ice shanties. Someday I will take a pic of my -sled unsticker- made with telescoping tri-angular aluminum, swallow house pole material and a left over boat winch. Laugh you might, but it works...course carrying it around is another thing....